I just purchased a new Canon camera that takes photos in RAW CR3 format. I was previously able to open RAW CR2 format files, however I cannot seem to open the CR3 files on Pixelmator Pro to process the images. Is there something I am missing or do I need to wait for an update?? Thank you!

P.S. The update will come in the form of a RAW compatibility update that gets shipped along with macOS updates, so this actually depends on how quickly Apple ship the update rather than being something we can do. As a general rule, once you can open the RAW files in the Preview app, you'll also be able to open them in Pixelmator Pro.